3. Functional Description
Page 22
M0200AJA_ION-U_EU_L_17EP_17EP.docx
User’s Manual for ION
®
-U
EU IN1, EU IN2 Antenna Ports
The EU has two duplex 4.3-10 female antenna ports
for connecting to the
antenna ports of an ION-U EU L Expansion Unit. The signals are combined and fed to
the ANT-1, ANT-2 ports of the ION-U EU L 17EP/17EP.
Status LEDs
The
status LEDs
provide a visual warning of an alarm condition. The color of
the LED indicates the severity of the alarm.
RU Expansion Ports
The RU DL and UL Expansion ports for path 2
and the RU DL and UL Expansion
ports for path 1
are QMA female connectors that are used to connect to the
Expansion ports of two RUs.
EU Expansion Ports
The EU DL and UL Expansion ports for path 2
and the EU DL and UL Expansion
ports for path 1
are QMA female connectors that are used to connect to the
Expansion ports of an additional EU such as an ION-U EU L 23/23.
Mains Connector
The EU receives its power through the Mains connector
. The type of connector
depends on the EU model. A 4-pin Amphenol connector is used for AC models and
standard DC models. A 7-pin Amphenol connector is used for DC models powered by
a dual cable supply.
Ctrl Connector
The Ctrl connectors
are DB-9 male connectors and are used for external modem
communication with RUs.
Local Port RS-232
The RS-232 ports
are standard DB-9 female connectors used for external
modem communication with another EU.
Probe Port
The probe ports
are QMA measurement probes that allow the measurement of
the antenna outputs without disconnecting the antennas. The coupling is as follows:
Port
Coupling dB typ.
1700 MHz
41dB
O
P
I
J
A
B
E
F
C
D
G
H
M
V
X
U
W
K
L
Summary of Contents for ION-U EU L 17EP/17EP
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